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  <title>Document</title>
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  <script>

    let n = 521n
    console.log(n, typeof (n))    // 521 bigint

    // 大数值的运算
    let max = Number.MAX_SAFE_INTEGER;
    console.log(max);
    console.log(max + 1);
    console.log(max + 2);

    console.log(BigInt(max))
    console.log(BigInt(max) + BigInt(1))
    console.log(BigInt(max) + BigInt(2))

  </script>
</body>

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